I don't know anything about Latin Jazz. The only Latin singers in my collection are Shakira, Selena, and Ana Gabriel - plus Gloria Estefan, to the extent that she counts. (I'm thinking of "Si Voy a Perderte", "Oye Mi Canto", and her other Spanish-language songs. I find that when she does an English and a Spanish version of the same song, the Spanish version usually packs more punch. Same thing for Shakira: I bought one of her English-language albums, wasn't impressed, then bought the Spanish version and was much more pleased.)